Readdle, the team behind some of the best productivity apps and utilities for iOS, has slashed 50% off five of its top offerings for Black Friday. The sale includes titles like PDF Expert for iPhone and iPad, Calendars 5, and Printer Pro — all of which are now half price for a limited time.

Readdle doesn’t do discounts often — probably just once or twice a year — so a 50% discount shouldn’t be missed. If you’ve been thinking about picking up any of these apps, then now’s the time to do it. The sale started early this morning, and it’ll last just 48 hours.